120001011022111 has 4 divisors (see below), whose sum is σ = 120001210284592. Its totient is φ = 120000811759632.

The previous prime is 120001011022099. The next prime is 120001011022121. The reversal of 120001011022111 is 111220110100021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120001011022111 - 2⁴¹ = 117801987766559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001011022091 and 120001011022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001011022121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98725155 + ... + 99933268.

It is an arithmetic number, because the mean of its divisors is an integer number (30000302571148).

Almost surely, 2^{120001011022111} is an apocalyptic number.

120001011022111 is a deficient number, since it is larger than the sum of its proper divisors (199262481).

120001011022111 is an equidigital number, since it uses as much as digits as its factorization.

120001011022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199262480.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120001011022111 its reverse (111220110100021), we get a palindrome (231221121122132).

The spelling of 120001011022111 in words is "one hundred twenty trillion, one billion, eleven million, twenty-two thousand, one hundred eleven".